Improvement in hollow partition-bricks



I. BORIE;

' HOLLOW PARTITION-BRICK; No.1 78,988. mama JuneZO. 1876.

- z 6 %\i%%.:;es Inventor wwyfl N.PEIEHS. PHOTO-LITNOGRAFHER. WASHINGTON O C TED STATES PATENT OFFICE.

JULES BORIE, OF OAKLAND, CALIFORNIA.

IMPROVEMENT lN HOLLOW PARTITION-BRICKS.

Specification forming part of Letters Patent No. 178,988, dated June 20, 1876; application filed May 9, 1876.

To all whom it may concern Be it known that I, JULEs BORIE, of Oakland, Alameda county, State of California, have invented an Improved Partition-Brick;

and I do hereby declare the following descrip- 7 of air can be maintained through a, wall composed of hollow bricks, they are especially adapted for use in constructing partitionwalls.

. My improvements consist, first, in such a formation of the ends'of this class of bricks that the abutting ends of each two bricks in the wall will interlock with each other, and thus form a Wall or partition in which the bricks are all bound together as a unit; secondly, in providing in the sides of each brick perforations for holding the plastering of the wall, and binding it firmly to the bricks.

Referring to the accompanying drawing, Figure 1 is a perspective view of my brick.

Figs. 2 and 3 are sections of the same.

Let A represent a hollow brick. One end of each brick I make concave, and the other end convex, as represented, so that when two bricks are placed together end to end the convexity of one will fit in the concavity of the other, and thus serve as a key to hold .each other in place.

The ends of the bricks can be variously conter the perforations or indentations and key itself to the wall, so that it will not be liable v to fall off. These improvements will render this class of bricks much more useful for constructing partitions. These perforations are better than grooves, because they can be more uniformly distributed, and they form a better key for holding the plaster, especially when the holes pass entirely through the shell of the brick. v

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. Hollow bricks having their opposite ends constructed to interlock, substantially as and for the purposes described.

2. Hollow bricks provided with perforations b b b,substantially as and for the purposes described.

' In witness whereof I have hereunto set my hand and seal.

Jonas BORIE. pt. s]

Witnesses:

GEO. H. STRONG, OHAs. G. PAGE. 

